PineGrove N99 Organic (Medium 51-130 lbs/23-58 kilograms)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>CE Certified Quality Management and Product Safety</li><li>Meets NIOSH N99 particle filtration criteria for filter efficiency as stated in 42 CFR Part 84.</li><li>Organic cotton outer and inner faceblank</li><li>Filtering textile protects from 99% of airborne particles over .3 microns</li><li>Superior protection for PM 2.5 particles in air pollution</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/41W35-Q35dL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41gn7IDOnzL.jpg' noproxy></br>